Improvement in stop-motions for looms



J. H. MORTIMER. Stop-Motion for Looms.

Patented Oct. 30, 1877.

N-PETERS, PHOTO-IJYNOGRAPHER, WASNINGTON D C ST TE PATENT OFFICE.

JOSEPH H. MORTIMER, oF" oriivsToN," HoDE ISLAND, ASSIGNOR or ONE- HALF111s RIGHT TO IANDREW s. WYNN, or SAME PLACE.

"lM aovEMEN'fr "IN ST O P-MOTIONS FOR LOOMS.

Specification fornnng part of Letters Patent No. 196,590, dated October30, 1877; application filed j I .4 f June 13, 1877..

To all whom it may concern; 4, f

Be it known that I, Josnrn H. MORTIMER, of Johnston, in the county ofProvidence and State of Rhode Island, have made certain new and usefulImprovements in Stop-Motions for Looms; and I do hereby declare that thefollowing specification, taken in connection with the drawings making apart of the same, is a full, clear, and exact description thereof.

the filling; and (l the warp. D is. the breastbeam of the loom; E, thelathe F, the yarnfiame; and Gthe reed. H is an arm attached to the underside of the breast-beam, and has at'its other extremity, upon eitherside, adjustable cam-surfaces. I J are levers pivoted in bearingsattached to a metal plate upon the under side of the lathe. As thelatter moves forward and backward, the cam-surfaces raise the saidlevers I J, by engaging with rollers N carried by said levers. Theletter m designates a lever pivoted to a bracket attached to the lathe,and provided with a finger or fork, Q. To the lever m is pivoted a rod,L, which is in the same vertical plane with the lever I. The lever I,operated by the cam-surface K, alternately throws up and recedes fromthe rod L, and, consequently, the finger-lever M, to which it isattached, is alternately elevated and left free to descend.

O is the dagger, of usual construction, and e is the shipper-lever. Thelever J, operated by the cam-surface N, acts upon the tail of the daggerO to depress the outer or longer arm. This arm will rise immediatelyafter lever J leaves the cam and actuates the shipping mechanism, unlessthe said arm or dagger O is arrested in its upward movement by thecheck-lever P, as hereinafter described. The outer arm of the lever O isthrown upward by a spring, 0, which acts 011 its .heel or short arm, asshown in Fig. 3 of the drawings. d is a spring which operates or actsupon the doublearm check-lever P, as shown by Figs. 3 and 4 of thedrawings.

Having thus described the several parts of my invention, I will nowproceed to describe its operation, commencing with the parts in theposition shown in Fig. 3, the lathe E having just completed its forwardmovement and driven up the filling. The lathe E now moves backward toits extreme point in that direction, as shown in Fig. 2, and in so doingbrings the levers I J, provided with suitable friction-rollers 0b a, incontact with the cam-surfaces K N, the efiect of which is to bring thelevers I J to a position nearly at right angles to the lathe E. As thelever I is thus thrown up it comes in contact with and carries upwardthe rod L and the finger-bar M, to which the rod L is attached, thefingers Q passing through and above the warp, as shown in Figs. 1 and 2.While the fingers Q remain in this elevated position, the filling Bpasses under them and through the shed, as shown in Fig. 1. The lever J,being thrown up, operates upon and depresses the long arm of the lever0. The lathe E now commences its forward movement. The lever I passesbeyond the cam-surface K, and is released, and drops to its formerposition. The rod L is also released, and slides down, by its own weightand the weight of the finger-lever M, until the fingers Q rest upon thefilling. The double-armed check-lever P, the horizontal arm of which wascaught and carried upward by a pin upon the rod L, is also released,and, being actuated by aspiing, d, falls with the rod L until thedownward movement of both is arrested by the fingers Q coming in contactwith the filling, as before described. The depression of the horizontalarm of the lever P carries its perpendicular armto a position whichenables it to catch and check the upward movement of the long arm of thelever O, upont he release of the lever J from the cam-surface N, as thelathe E continues its forward movement. After the fingers Q drop uponthe filling they slide off with the continued forward movement of thelathe, being held, however, a sufficient length of the lever P will becorrespondingly depressed,

time to permit the operation of the check-lever l 1?, before described.The leverO, thus checked, passes under the lever e, by which theshipping mechanism is operated at the completion of the forward movementof the lathe. The fingers Q, after sliding ofl' fi'om the filling, dropinto a recess in the lathe in time to clear the reed as it drives up thefilling. The lathe now starts backward, and the same operation of allthe parts is repeated. In case, however, the filling is not present inthe shed, the fingers Q will not be arrested in their downward movement,but will drop directly into the recess in the lathe, and the horizontalarm of which will carry its perpendicular arm beyond the lever O. Thelever 0, not being checked upon the release of the lever J from thecamspecified.

JOSEPH H. MORTIMER. Witnesses:

BENJ. BAKER,

WALTER B. VINCENT.

